[PKT_SCHED]: Use USEC_PER_SEC

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index c26764b..cad1758 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -208,7 +208,7 @@
 do {									\
 	struct timeval tv;						\
 	do_gettimeofday(&tv);						\
-	(stamp) = 1000000ULL * tv.tv_sec + tv.tv_usec;			\
+	(stamp) = 1ULL * USEC_PER_SEC * tv.tv_sec + tv.tv_usec;		\
 } while (0)
 #endif
 
@@ -502,8 +502,8 @@
 	u64 dx;
 
 	dx = ((u64)d * PSCHED_JIFFIE2US(HZ));
-	dx += 1000000 - 1;
-	do_div(dx, 1000000);
+	dx += USEC_PER_SEC - 1;
+	do_div(dx, USEC_PER_SEC);
 	return dx;
 }
 
@@ -523,7 +523,7 @@
 {
 	u64 d;
 
-	d = dx * 1000000;
+	d = dx * USEC_PER_SEC;
 	do_div(d, PSCHED_JIFFIE2US(HZ));
 	return (u32)d;
 }